Lack of correlation between minimal erythema dose and skin phototype in a colombian scholar population

Sanclemente, Gloria; Zapata, José-F; García, José-J; Gaviria, Ángela; Gómez, Luis-F; Barrera, Mario

doi:10.1111/j.1600-0846.2008.00306.x

Cited by 28 publications

(13 citation statements)

References 28 publications

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“…Limited evidence for differences in tanning response between Indigenous American and European individuals comes from studies of phototype in Colombia (Sanclemente et al 2008). This research found a small association between MED and phototype and, as in East Asian populations, an overall difference in photosensitivity between Europeans and admixed Colombians.…”

Section: Population-level Variability In Sensitivity and Persistence mentioning

confidence: 68%

The Evolution of Tanning Needs Its Day in the Sun

Quillen¹

2015

Human Biology

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Section: Population-level Variability In Sensitivity and Persistence mentioning

confidence: 68%

The Evolution of Tanning Needs Its Day in the Sun

Quillen¹

2015

Human Biology

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“…A number of studies have suggested a strong correlation between pigmentary phenotypes and FSPT in Caucasians 13–15 , but studies in Korea, Thailand and Colombia 16–19 did not find such correlation. These data suggest that pigmentary phenotypes may be predictive of FSPT in Caucasians, but not in non-Caucasian minorities, rendering PSPT a less effective method of assessing skin cancer risk in an ethnically diverse population like the U.S. Physicians frequently overestimate sunburn risk for Caucasians based on patient appearance and underestimate sunburn risk for racial minorities 20 .…”

Section: Discussionmentioning

confidence: 94%

Self-reported pigmentary phenotypes and race are significant but incomplete predictors of Fitzpatrick skin phototype in an ethnically diverse population

McCulloch

Boscardin

et al. 2014

Journal of the American Academy of Dermatology

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Background Fitzpatrick skin phototype (FSPT) is the most common method used to assess sunburn risk and is an independent predictor of skin cancer risk. Due to a conventional assumption that FSPT is predictable based on pigmentary phenotypes, physicians frequently estimate FSPT based on patient appearance. Objective To determine the degree to which self-reported race and pigmentary phenotypes are predictive of FSPT in a large, ethnically diverse population. Methods A cross-sectional survey collected responses from 3386 individuals regarding self-reported FSPT, pigmentary phenotypes, race, age and sex. Univariate and multivariate logistic regression analyses were performed to determine variables that significantly predict FSPT. Results Race, sex, skin color, eye color and hair color are significant but weak independent predictors of FSPT (P<0.0001). A multivariate model constructed using all independent predictors of FSPT only accurately predicted FSPT to within one point on the Fitzpatrick scale with 92% accuracy (weighted kappa statistic=0.53). Limitations Our study enriched for responses from ethnic minorities and does not fully represent the demographics of the U.S. population. Conclusions Patient self-reported race and pigmentary phenotypes are inaccurate predictors of sun sensitivity as defined by Fitzpatrick skin phototype. There are limitations to using patient-reported race and appearance in predicting individual sunburn risk.

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“…There has been a tendency to group people of similar ethnic group into a single category of SPT, which introduces potential bias into the subjective assessment of SPT by investigators [25][26][27] . The limitations of Fitzpatrick SPT, especially in people with darker skin [28,29] , include recall bias, subjective bias by clinicians and subjects, lack of cultural sensitivity of the questions, and adherence to sun protection recommendations, resulting in children not having experienced prior sunburns. Although skin pigmentation is not the only factor that plays a role in protection against sunburn [11] , it remains an important risk factor for skin cancer development.…”

Section: Resultsmentioning

confidence: 99%

Digital dermoscopy to determine skin melanin index as an objective indicator of skin pigmentation

et al. 2016

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Clinical assessment of skin photosensitivity is subjectively determined by erythema and tanning responses to sunlight recalled by the subject, alternatively known as Fitzpatrick Skin Phototype (SPT). Responses may be unreliable due to recall bias, subjective bias by clinicians and subjects, and lack of cultural sensitivity of the questions. Analysis of red-green-blue (RGB) color spacing of digital images may provide an objective determination of SPT. This paper presents the studies to assess the melanin index (MI), as determined by RGB images obtained by both standard digital camera as well as by videodermoscope, and to correlate the MI with SPT based upon subjects' verbal responses to standardized questions administered by a dermatologist.A sample of subjects representing all SPTs I-VI was selected. Both the digital camera and videodermoscope were calibrated at standard illumination, light source and white balance. Images of constitutive skin of the upper ventral arm were taken of each subject using both instruments. The studies showed that 58 subjects (20 M, 38 F) were enrolled in the study (mean age: 47 years; range: 20-89), stratified to skin phototype I-VI. MI obtained by using both digital camera and videodermoscope increased significantly as the SPT increased (p = 0.004 and p < 0.0001, respectively) and positively correlated with dermatologist-assessed SPT (Spearman correlation, r = 0.48 and r = 0.84, respectively). Digital imaging can quantify melanin content in order to quantitatively approximate skin pigmentation in all skin phototypes including Type VI skin. This methodology holds promise as a simple, non-invasive, rapid and objective approach to reliably determine skin phototype and, with further investigation, may prove to be both practical and useful in the prediction of skin cancer risk.

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Lack of correlation between minimal erythema dose and skin phototype in a colombian scholar population

Cited by 28 publications

References 28 publications

The Evolution of Tanning Needs Its Day in the Sun

The Evolution of Tanning Needs Its Day in the Sun

Self-reported pigmentary phenotypes and race are significant but incomplete predictors of Fitzpatrick skin phototype in an ethnically diverse population

Digital dermoscopy to determine skin melanin index as an objective indicator of skin pigmentation

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